Macchi M.C. 72

The Macchi M.C. 72 was an experimental seaplane designed and built by the Italian aircraft company Macchi Aeronautica. In 1933 and 1934 it set a world record for speed over water. For two years the plane suffered from many mechanical defects as well as the loss of two test pilots who died trying to coax world class speed out of the M.C. 72 (first Monti and then Bellini). The final design of M.C. 72 used a double, counter-rotating fixed-pitch propeller powered by a modified Fiat AS-6 engine generating some 2,500 to 3,100 horse power (thanks to supercharging). After 35 flights, the engines were overhauled in preparation for a record attempt. The aircraft finally lived up to expectations when it set a new world speed record (over water) on 10 April 1933 with a speed of 682 km/h (424 mph). It was piloted by Warrant Officer Francesco Agello (the last qualified test pilot). Not satisfied, development continued as the aircraft's designers thought they could break 700 km/h with the M.C. 72. This